Mike is that one character that I was really happy to see in the LB6.
(Some little SPOILER)
He was a normal fairy. Nothing great about him, nothing particulary outstanding, but at the very end he proved to be better than the others. He didn't succumb to his own darkness, he didn't let it consume his reason and he won against something all others fairies couldn't.
"I have found that it is the small everyday deed of ordinary folks that keep the darkness at bay. Small acts of kindness and love"
I think this phrase describe pretty well how I felt about Mike.